Open Journal Systems supports the LOCKSS (Lots of Copies Keep Stuff Safe) system to ensure a secure and permanent archive of journal content. The LOCKSS program is an open-source software tool developed at Stanford University that allows libraries to preserve and provide access to persistent and authoritative digital content by regularly checking registered web sites for new published content and archiving it. Each archive is permanently checked for consistency with others; if the content is damaged or lost, other archives are used to restore it automatically.
See LOCKSS Publisher Manifest page.
We also use Vernadsky National Library of Ukraine to store the archive of our journal.